UIPickerView 显示与隐藏

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转载最新推荐文章于 2026-05-08 12:31:23 发布 1.1k 阅读 AI 写同款· GEO 优化 ›

osgEarth 球上显示地形数据库 osgEarth 球上显示地形数据库本文展示了一种由DSM和DEM得到Osgb工程，并在osgEarth球上显示的方法。其中DSM、DOM到Osgb工程的转换由VPB(VirtualPlanetBuilder)来实现，并采用Model图层将Osgb工程在球上显示。本文主要解决一下问题： VPB编译 VPB生成地形地形在球上显示目录 1 前言 2 VPB编译与使用 3 地形在osgEarth球上显示内容 1 前言 VirtualPlanetBuilder是一个开源代码工具，用于根据阅读详情

转载自 http://www.devdiv.com/home.php?mod=space&uid=45444&do=blog&id=6238

UIPickerView* pickerView = [[UIPickerView alloc] init];
[pickerView sizeToFit];
pickerView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
pickerView.delegate = self;
pickerView.dataSource = self;
pickerView.showsSelectionIndicator = YES;
self.yourPickerView = pickerView;  //UIPickerView

yourTextField.inputView = pickerView;

// create a done view + done button, attach to it a doneClicked action, and place it in a toolbar as an accessory input view...
// Prepare done button
UIToolbar* keyboardDoneButtonView = [[UIToolbar alloc] init];
keyboardDoneButtonView.barStyle = UIBarStyleBlack;
keyboardDoneButtonView.translucent = YES;
keyboardDoneButtonView.tintColor = nil;
[keyboardDoneButtonView sizeToFit];

UIBarButtonItem* doneButton = [[[UIBarButtonItem alloc] initWithTitle:@"Done"
    style:UIBarButtonItemStyleBordered target:self
    action:@selector(pickerDoneClicked:)] autorelease];

[keyboardDoneButtonView setItems:[NSArray arrayWithObjects:doneButton, nil]];

// Plug the keyboardDoneButtonView into the text field...
yourTextField.inputAccessoryView = keyboardDoneButtonView;  

[pickerView release];
[keyboardDoneButtonView release];